A book that explores the simple essence of intellectual productivity. - Title: ISSUE DRIVEN - Author: Kazuto Ataka - Publisher: Eiji Press - Price: 1800 yen + tax There are multiple places with pencil markings. I haven't counted the number of places, but it's about the degree that can be easily erased with an eraser, as shown in the photos. Please be aware of this if you are sensitive to such things. Thank you for looking.